Alli Simpson is literally the greatest radio host of all time, and we love tuning in for her show on Radio Disney each week. We will definitely be tuning in on Friday to hear Justin Bieber chat with Alli about his life, his new music and more!

Alli chatted with J-14 about having Justin on the show, revealing, "It was very exciting! Honestly I would say he was one of my favorite guests...He was really great to have on – he’s a positive energy."

And that's not all! Alli would LOVE to record a duet with Justin in the future! She told us "if I ever had the chance I would definitely jump on that. I think it would be extremely fun!"

Of course we also had to ask Alli her favorite JB songs! Turns out she loves "What Do You Mean?" and "Confident" - two classic choices!

Be sure to tune into The Alli Simpson Show on Radio Disney Friday, September 18 at 6pm PST to hear Alli chat with Justin!